Home / 65,688.40-98,565.56-30,630.80

Finding the Fourth Proportional to 65,688.40, 98,565.56 and 30,630.80

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Solution

The fourth proportional to 65,688.40, 98,565.56 and 30,630.80 is: 45,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688.40 : 98,565.56 = 30,630.80 : x
  2. Step 2: Convert to fraction form
    65,688.40/98,565.56 = 30,630.80/x
  3. Step 3: Cross multiply
    65,688.40x = 98,565.56 × 30,630.80
  4. Step 4: Simplify right side
    65,688.40x = 3,019,141,955.25
  5. Step 5: Solve for x
    x = 3,019,141,955.25/65,688.40
  6. Step 6: Final answer
    x = 45,961.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.